Gage and holder for lock-strikes.



J. MAG VANE.

GAGE AND HOLDER FOR LOCK STRIKES. APPLICATION FILED IBB.28, 1914.

1,127,055, Patented Feb. 2, 1915.

8 MI W IIVI ENTOR A TTORNEYS THE NORRIS PETERS C0, PHOTO-LITHO.. WASHING mmv n UNITED STATES PATENT @FFIQE.

JAMES MAOVANE, 0F PROVIDENCE, RHODE ISLAND, ASSIG-NOR OF ONE-HALF TO W. B. CARPENTER, 0F PROVIDENCE, RHODE ISLAND.'

GAGE AND HOLDER FOR LOCK-STRIKES.

Specification of Letters Patent.

Patented Feb. 2, 1915.

To all whom it may concern:

Be it known that I, JAMES MACVANE, a citizen of Great Britain, and a resident of Providence, in the county of Providence and State of Iihode Island, have invented a new and Improved Gage and Holder for Lock- Strikes, of which the following is a full, clear, and exact description.

My invention relates to gage means for use in applying a strike plate to a door jamb, and more particularly to a device having gage elements to determine the position of the strike plate on the door jamb by gaging the position of the latch bolt of the door lock. Associated with the means for gaging the position of the strike plate, latching means are provided for holding the strike plate on the gage in the predetermined gaged position, the arrangement being such that the gage, with the strike plate held thereon, may be engaged with the stop bead on the door jamb, and thereby properly position the strike plate on the jamb.

The invention will be particularly explained in the specific description followmg.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a face view of my improved device, showing the same in position on a door to gage the position of the latch-bolt relatively to a side face of the door; Fig. 2 is a plan view of the device in the position shown in Fig. 1, a portion of the door being shown in horizontal section; Fig. 3 is a face view of the device with the strikeplate or strike held thereon and positioned relatively to a door jamb; Fig. 4 is a plan view of the device applied to the door jamb, the strike plate and door jamb being in section. Fig. 5 is a cross section on the line 5-5 of Fig. 1; and Fig. 6 is a cross section on the line 6 6 of Fig. 1.

The device is applicable to ordinary doors and door jambs. Ihave illustrated a portion of a door A, and the latch bolt B of the door lock, together with the strike plate C, and the door jamb D having any approved stop bead d.

In constructing a practical embodiment of my invention in accordance with the illustrated example, a base or main plate 10 is provided, having at one end a gage lip 11 perpendicular to the body of the .plate 10.

A slide gage 12 has movement on the face of the base plate 10, and at the forward end thereof are gage elements in the form of lateral ears 13.

The base plate 10 is applied to the edge of the door with the gage lip at a side of the door, and the slide gage 12 is adjusted to locate either one of the ears 13 against the projecting fiat side of the latch-bolt B, as indicated in Figs. 1 and 2. On the forward end also of the slide gage 12, gage elements in the form of perpendicular lugs 14 are provided. The relative location of the gage ears l3 and gage lugs 14:, is such that the.

rear faces of the lugs 14 are substantially in the same plane with the forward edges of the ears 13. The said lugs 14E are adapted to be received in the opening a of the strike C that receives the latch bolt B, as shown in Figs.'3 and 4:, so that the inner faces of the said lugs will lie against a side wallof the said opening 0. Guided movement is given to the slide gage 12 by side ears 15 that embrace the main plate 10 at the opposite side edges.

In order to lock the slide gage 12 in adjusted position on the base plate 10 after a gage ear 13 has been set against the latch bolt, a set screw 16 or equivalent device is employed on the slide gage. As here shown the set screw has a milled head 16 at one end, and a clamp block 17 threaded onto the opposite end, there being a collar or washer 18 opposing the clamp block 17, and the latter having a reduced square portion 17 which is received in a longitudinal slot 19 in the base'plate 10. Thus the shifting of the set screw .will slide the gage 12 along the base plate 10 to the desired position, and the parts may be quickly locked in the desired adjustment by tightening the setscrew.

In order to hold the strike plate 0 in position after the slide gage 12 has been adjusted, a sliding holder 20 is provided in the I sufficiently to receive an edge of thestrike C beneath said forward extension when the I gage lugs 14: are located against a side wall of the opening c. of the strike C, and the holder 20 moved forwardly until the inwardly bent members 22' engage the adjacent side edge of the said strike C. Thus, referring: to F igs- 3i and: 4;,- it will be seen that the side portion of the strike is held between the side gage 12' and the forward extension 24: of the holder 20, the gagelugs 1 1' and the inwardly bent members 22' engaging respectively with' the sidewall of the opening 0: of the strike and the adjacent outer side edge thereof.

In order to adjust the: strike holder 20 relatively'to-the gage lugs Il',-a clamp screw 25 is provided, having a milled nut 25* at one: end and a headv 25 at the opposite end. As best seen in Fig. 6, the screw 25 is carried by the strike holder 20,- its shank extending through a slot 12 in: the slide gage l2, and through the longitudinal s1ot'19 of thebase plate 10; Suitable clamp collars or shoulders are" provided on the screw, the

holder 20 being clamped between the head 25 'and a collar 25, and there being a Washer 25 between the'mi'lled nut 25 and the base: plate 10: The arrangement issuch that by tightening or loosening the milled nut, the screw 25 and the strike holder 20 may be moved lengthwise- The slots 12 and: 19, and the screws: 1.6, 25, provide for any desired relative movement of the base plate 110, slide gage lQ, and? strikeholder'20.

' By the described arrangement it will be readily understood that: the application of the device to the door A and latch bolt B, as in Figs. 1 and 2', gages thezposition of'the strike plateso that the strike plate may" be positioned by the gage-lugs 14 and clamped in the gaged positionibytheholder 20. The device with the strike plate? clamped thereon is then placed against the door jamb D, the gage: lip: 11 on the-base plate 10 being placed. against the stop bead all of the door jamb.

Referring particularly to Figs; 1 and 3, it will be observed that an opening 26- is provided in the base plate 10, at'the forward: end thereof. The purpose of the said opening is to make it possible: to use. the device as a gage generally"; thus. the forward end of the slide gage: 12! may be: adjustable relatively to the front wall of the opening 26 and locked in the adjusted position. It will. then be possible to place the point of' a penknife against theforward: end of the slide gage 12" and the penkni fe may then be used -as a scratch gage. In a similar manmen a pencil might be placed against theforstrike upon the said elements in the predetermined gaged position. 1

2. In a device of the character described, relatively movable elements having co-acting gage members to gage the position of a lock strike by the" position of the latch bolt of a door,,means'te hold the relatively movable elements in adjusted position, in combination with adjustable means to retain a strike plate upon said elements. I

3. In a device of'the character described, relatively movable elements having co-relat-ed gage members torespectively engage the side face of a dooriand a side of a latch bolt ofa door lock, means to hold therelatively' movable elements in adjusted position, and an additional. gage member on one of said elementsito engage a strike plate;

4:. In adevice of the character described,

an element having a gage member to con-- tact with a sideefaceofa door, and a second element movable on the first element and provided with a gage member'to gage the position of a latch bolt relatively to the first mentioned gage member, means to hold the relatively movable elements in adjusted position; said second? element having: an addit'fonal. gagemember adjacent to the second mentioned gage member adapted to receive a lock strike.

5. A lock strike gage comprising gage elements to gage the position ofa lock strike,

a holder for retaining a lock strike on the gage; any" predetermined?position of the gage elements, and means to'hold the: said gage elements and lock strike holder together in assembled adjusted positions.

6. In a lock strike gage and holder, two relatively movable elements having membersthereon to gage the position of' a latch boltirelatively to a side face of a door, and a third element attached to and movable relatively to the other elements, the said third element and one of the other elements having coacti'ng members: tohold a lock strike in a gaged position determined by' the relative movements of the first two'elements ;f together with means to hold the said elementsiin adjusted position.

'2. In adevice of the character described, a base plate having a gage lip at an end thereof, a slide gage on. said base plate having a gage member at the-end! ad acent to said lip, and a third element slidable relatively to the slide gage and base plate and provided with means to clamp a strike in various positions according to the adjusted position of the slide gage on the base plate; together with means to hold the various parts together in adjusted position.

8. In a device of the character described, a base plate having a gage lip adjacent to one end thereof to engage a side face of a door, a slide gage having at the end adjacent to the lip of the base plate a gage member presenting a front edge to co-act with the said lip by engaging a latch bolt of a door lock, said slide gage having an additional gage member adjacent to the first member of said slide gage and approximately perpendicular to said first member and adapted to enter the opening of the strike plate, the said additional gage member of the slide gage presenting a rear side in alinement with the forward edge of the first mentioned member of the slide gage,

Copies of this patent may be obtained. for

and means to hold the base plate and slide gage together in adjusted position.

9. In a device of the character described, a base plate having a gage lip, a slide gage having a gage member to engage a latch bolt and an additional adjacent gage member to enter the opening of a strike plate, and a slidable strike holder presenting a forward extension spaced from the gage plate to receive a strike beneath the said extension, the said holder having a member to engage a side edge of the strike for clamping the latter against the additional gage member on the slide gage, together with means to hold the base plate, slide gage, and strike holder in adjusted positions.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES MAOVANE.

Witnesses:

LoUIs A. BASINET, ERNST EASTWOOD.

five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

